PBT: Fibers That Fit

Polybutylene Terepthalate (PBT) is a multi-filament yarn designed for applications that require excellent stretch and recovery properties. As a member of the polyester family, this semi-crystalline thermoplastic delivers low moisture absorption and reliable color fastness. It also boasts excellent dimensional stability and superb molding characteristics. So whether you’re designing cycling apparel or composites, our PBT products are a great fit.

Properties of PBT

  • A strong fiber with high elongation delivering outstanding stretch and recovery properties
  • Resistance to humidity and perspiration make for a fiber that dries quickly when wet
  • Color fastness stands up well to ultraviolet light
  • Excellent molding characteristics make PBT softer and more flexible
  • Good mechanical properties including high strength, rigidity, toughness and resistance to a wide range of chemicals, solvents, oils and greases
  • Chlorine resistance helps make this fiber last longer through repeated laundering or exposure to chlorinated water


Applications of PBT

  • Sewing thread
  • Composites
  • Furniture seat backs
  • Performance apparel